I think that the Old Republic MMO had some great visual graphics and storytelling, and I have watched just cutscenes that people have put together rather than playing through every single storyline (there are eight, I think). So, for me, I watch them.
But that's the thing. SWTOR is a choose your own adventure. Certainly, the over-arching narrative is on rails - to a degree that's more than some would like - it plays out through player interaction and choice. It isn't just that there are eight stories. Each story changes depending on character alignment. Gender also plays a role. So you're really looking at 32 different character possibilities, and that's just at character creation. Plus, that doesn't even account for sexual preference. None the less, even if you were to take two straight, light-sided female smugglers from the start all the way through to the current state in Onslaught, you could have two very different people with different journeys, experiences, agendas and mission objectives whilst being married to two different people.
Agents can remain loyal servants of the Empire. They can defect to the Republic. They can defect to the Republic and become double-agents. hey can defect to the Republic and become double-agents; return to the Empire and become double double-agents. Inquisitors and try to reshape the Sith from within. Or they can build their own army of sycophants take over the sith and then go on to usurp the throne of the Eternal Empire and pretty much conquer the galaxy. Or they can just blow that all off and run around electrocuting people because murder and mayhem await.
Now, of course, there's no way anyone could ever be expected to play through each character enough times to experience all the different possibilities, and no single 'playthrough' of a character offers any more content than just watching videos. But that's not the point. The stories are meant - and designed - in a way that facilitates that interaction, such that, it could be argued, not interacting with them yourself undermines the devs' creative and artistic intent.
None the less, the point is videogames - all videogames - are designed for players to make the characters their own. You don't watch Link solve some puzzles, hunt down the Magic Sword, defeat Ganon, and save Zelda. You play as Link. You solve the puzzles. You search (or check Nintendo Power) for the Magic Sword. You defeat Ganon and rescue Zelda.
Thus, as a narrative experience, the difference in cinema and videogames as media is more than just glib semantics. It's because of that interactive difference that gives videogames more narrative freedom. Since the story is always the players' own, they don't have to rely on nostalgia bait nearly as much.
And yet SWTOR does. It wears the Skywalker Saga like cheap perfume. Most of the in-game gear is derivate stuff from the movies. And of course, all the pay real money for pixels stuff is more or less replicas: Pay $12 for Obi-Wan's ANH robes. $8 for Anakin's hilt. $4 to make T-7 look like R2. The soundtrack consists of a handful of original tracks, a couple of tracks from both KOTOR and KOTOR II and then lots and lots of stuff from Clones and ROTS, with "Battle of the Heroes" being really common, especially during big boss fights. And there's a remix of Luke's theme that pops up all over the place. And then you have the Knight story - which is more or less the de facto "main" SWTOR story is just a collection of different yet strikingly similar wink. wink. nudge. nudge events from the films. Suffice it to say, SWTOR weaponizes Skywalker nostalgia as much as it can.
Which is really what we're talking about. The Skywalker Saga will never die because, for as long as the franchise persists, it will be mined for self-referential nostalgia to used, if not for direct story elements, at the very least marketing. The Franchise will always be attached to the Skywalkers at the hip. Always.
Rebels ... did well that did not include Skywalkers.
Vader was a huge part of the pre-launch ad campaign. "Spark of Rebellion" literally opens with a close-up of his face. The first episode of the series is about R2 and 3PO. Leia appeared in a couple of episodes. One of the biggest complaints of the first two seasons was that it had way too much fan-service. At the same time, the most celebrated scene of the whole show is the fight between Vader and Ahsoka that ends with her cracking his helmet, exposing half of his face with a fantastic effect that blended JEJ's voice with Lanter's. Not to mention the fight between Obi and Maul, where Maul deduces why Obi is on Tatooine. To say Rebels 'did well without the Skywalkers' is disingenuous at best.